Power cable accessories are products that connect cables to power transmission and distribution lines and related power distribution equipment. They generally refer to intermediate and terminal connections of various cables in a cable line, forming the power transmission network together with the cables. Cable accessories are primarily designed based on the characteristics of the cable structure, restoring cable performance while ensuring cable length extension and terminal connections. The reliability of high-voltage cable accessories can be evaluated from aspects such as electrical performance, sealing and moisture-proof performance, mechanical performance, and technological performance.
Cable accessory connection methods are generally divided into terminal connections and intermediate connections. Terminal connections are further divided into indoor terminals and outdoor terminals. Generally, outdoor terminals refer to exposed cable joints, while indoor terminals refer to joints connecting cables to electrical equipment indoors. Intermediate connections are divided into straight-through and insulated types.
